Abstract:
A flanged hexagon head bolt can fasten the bolt by a stable fastening axial force, and can stop rotating the fastened bolt. When the bolt is fastened, a flat bearing face of a circular disk shape flange is brought into face contact with a flat bearing face of a flange portion. Up to the stage, the flanged hexagon head bolt is the same as a bolt which does not have recessed and protruded portions, a variation in a fastening torque is small, and a fastening axial force of the bolt is stabilized. When the bolt is further fastened, the bearing face of the flange portion is inclined, and the recessed and protruded portions of the circular disk shape flange bite an inclined root portion of the bearing face of the flange portion.
Abstract:
A telescopic shaft for steering of a vehicle is assembled in a steering shaft and includes a male shaft and a female shaft that are so fitted as not to be rotatable but to be slidable. Rolling members are fitted through an elastic body for pre-load between at least a pair of axially-extending grooves formed in an outer peripheral surface of the male shaft and in an inner peripheral surface of the female shaft. A slide member is fitted in between at least another pair of axially-extending grooves formed in the outer peripheral surface of the male shaft and in the inner peripheral surface of the female shaft. When a steering toque is equal to or smaller than a predetermined level, the elastic body for the pre-load exhibits a low rigidity characteristic as the elastic body performs pre-load action. When the steering torque is equal to or larger than the predetermined level, the slide member exhibits a high rigidity characteristic as the slide member engages with the pair of axially extending grooves.
Abstract:
A vibration prevention control circuit is provided that comprises at least one analog-to-digital converter circuit which samples and converts an output signal of a vibration detection element which detects vibration of an imaging device and an output signal of a position detection element which detects a position of an optical component, into digital signals, a vibration component processor that processes the output signal of the vibration detection element which is digitized by the analog-to-digital converter circuit, a down-sampling unit that down-samples the output signal of the vibration detection element which is processed by the vibration component processor, and a servo circuit that generates a control signal which drives the optical component, based on the output signal of the vibration detection element which is output from the down-sampling unit and the output signal of the position detection element which is digitized by the analog-to-digital converter circuit.
Abstract:
A image stabilization control circuit is provided which comprises at least one analog-to-digital converter circuit which converts an output signal of a vibration detection element which detects vibration of an imaging device and an output signal of a position detection element which detects a position of an optical component, into digital signals, and a logic circuit which generates a control signal which drives the optical component based on the output signal of the vibration detection element which is digitized by the analog-to-digital converter circuit and the output signal of the position detection element which is digitized by the analog-to-digital converter circuit, wherein an abnormality of the vibration detection element is judged based on an amplitude of the output signal from the vibration detection element which is converted into the digital signal by the analog-to-digital converter circuit.